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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/graphql/language
Просмотр файла: printer.mjs
import { printBlockString } from './blockString.mjs';
import { printString } from './printString.mjs';
import { visit } from './visitor.mjs';
/**
* Converts an AST into a string, using one set of reasonable
* formatting rules.
*/
export function print(ast) {
return visit(ast, printDocASTReducer);
}
const MAX_LINE_LENGTH = 80;
const printDocASTReducer = {
Name: {
leave: (node) => node.value,
},
Variable: {
leave: (node) => '$' + node.name,
},
// Document
Document: {
leave: (node) => join(node.definitions, '\n\n'),
},
OperationDefinition: {
leave(node) {
const varDefs = wrap('(', join(node.variableDefinitions, ', '), ')');
const prefix = join(
[
node.operation,
join([node.name, varDefs]),
join(node.directives, ' '),
],
' ',
); // Anonymous queries with no directives or variable definitions can use
// the query short form.
return (prefix === 'query' ? '' : prefix + ' ') + node.selectionSet;
},
},
VariableDefinition: {
leave: ({ variable, type, defaultValue, directives }) =>
variable +
': ' +
type +
wrap(' = ', defaultValue) +
wrap(' ', join(directives, ' ')),
},
SelectionSet: {
leave: ({ selections }) => block(selections),
},
Field: {
leave({ alias, name, arguments: args, directives, selectionSet }) {
const prefix = wrap('', alias, ': ') + name;
let argsLine = prefix + wrap('(', join(args, ', '), ')');
if (argsLine.length > MAX_LINE_LENGTH) {
argsLine = prefix + wrap('(\n', indent(join(args, '\n')), '\n)');
}
return join([argsLine, join(directives, ' '), selectionSet], ' ');
},
},
Argument: {
leave: ({ name, value }) => name + ': ' + value,
},
// Fragments
FragmentSpread: {
leave: ({ name, directives }) =>
'...' + name + wrap(' ', join(directives, ' ')),
},
InlineFragment: {
leave: ({ typeCondition, directives, selectionSet }) =>
join(
[
'...',
wrap('on ', typeCondition),
join(directives, ' '),
selectionSet,
],
' ',
),
},
FragmentDefinition: {
leave: (
{ name, typeCondition, variableDefinitions, directives, selectionSet }, // Note: fragment variable definitions are experimental and may be changed
) =>
// or removed in the future.
`fragment ${name}${wrap('(', join(variableDefinitions, ', '), ')')} ` +
`on ${typeCondition} ${wrap('', join(directives, ' '), ' ')}` +
selectionSet,
},
// Value
IntValue: {
leave: ({ value }) => value,
},
FloatValue: {
leave: ({ value }) => value,
},
StringValue: {
leave: ({ value, block: isBlockString }) =>
isBlockString ? printBlockString(value) : printString(value),
},
BooleanValue: {
leave: ({ value }) => (value ? 'true' : 'false'),
},
NullValue: {
leave: () => 'null',
},
EnumValue: {
leave: ({ value }) => value,
},
ListValue: {
leave: ({ values }) => '[' + join(values, ', ') + ']',
},
ObjectValue: {
leave: ({ fields }) => '{' + join(fields, ', ') + '}',
},
ObjectField: {
leave: ({ name, value }) => name + ': ' + value,
},
// Directive
Directive: {
leave: ({ name, arguments: args }) =>
'@' + name + wrap('(', join(args, ', '), ')'),
},
// Type
NamedType: {
leave: ({ name }) => name,
},
ListType: {
leave: ({ type }) => '[' + type + ']',
},
NonNullType: {
leave: ({ type }) => type + '!',
},
// Type System Definitions
SchemaDefinition: {
leave: ({ description, directives, operationTypes }) =>
wrap('', description, '\n') +
join(['schema', join(directives, ' '), block(operationTypes)], ' '),
},
OperationTypeDefinition: {
leave: ({ operation, type }) => operation + ': ' + type,
},
ScalarTypeDefinition: {
leave: ({ description, name, directives }) =>
wrap('', description, '\n') +
join(['scalar', name, join(directives, ' ')], ' '),
},
ObjectTypeDefinition: {
leave: ({ description, name, interfaces, directives, fields }) =>
wrap('', description, '\n') +
join(
[
'type',
name,
wrap('implements ', join(interfaces, ' & ')),
join(directives, ' '),
block(fields),
],
' ',
),
},
FieldDefinition: {
leave: ({ description, name, arguments: args, type, directives }) =>
wrap('', description, '\n') +
name +
(hasMultilineItems(args)
? wrap('(\n', indent(join(args, '\n')), '\n)')
: wrap('(', join(args, ', '), ')')) +
': ' +
type +
wrap(' ', join(directives, ' ')),
},
InputValueDefinition: {
leave: ({ description, name, type, defaultValue, directives }) =>
wrap('', description, '\n') +
join(
[name + ': ' + type, wrap('= ', defaultValue), join(directives, ' ')],
' ',
),
},
InterfaceTypeDefinition: {
leave: ({ description, name, interfaces, directives, fields }) =>
wrap('', description, '\n') +
join(
[
'interface',
name,
wrap('implements ', join(interfaces, ' & ')),
join(directives, ' '),
block(fields),
],
' ',
),
},
UnionTypeDefinition: {
leave: ({ description, name, directives, types }) =>
wrap('', description, '\n') +
join(
['union', name, join(directives, ' '), wrap('= ', join(types, ' | '))],
' ',
),
},
EnumTypeDefinition: {
leave: ({ description, name, directives, values }) =>
wrap('', description, '\n') +
join(['enum', name, join(directives, ' '), block(values)], ' '),
},
EnumValueDefinition: {
leave: ({ description, name, directives }) =>
wrap('', description, '\n') + join([name, join(directives, ' ')], ' '),
},
InputObjectTypeDefinition: {
leave: ({ description, name, directives, fields }) =>
wrap('', description, '\n') +
join(['input', name, join(directives, ' '), block(fields)], ' '),
},
DirectiveDefinition: {
leave: ({ description, name, arguments: args, repeatable, locations }) =>
wrap('', description, '\n') +
'directive @' +
name +
(hasMultilineItems(args)
? wrap('(\n', indent(join(args, '\n')), '\n)')
: wrap('(', join(args, ', '), ')')) +
(repeatable ? ' repeatable' : '') +
' on ' +
join(locations, ' | '),
},
SchemaExtension: {
leave: ({ directives, operationTypes }) =>
join(
['extend schema', join(directives, ' '), block(operationTypes)],
' ',
),
},
ScalarTypeExtension: {
leave: ({ name, directives }) =>
join(['extend scalar', name, join(directives, ' ')], ' '),
},
ObjectTypeExtension: {
leave: ({ name, interfaces, directives, fields }) =>
join(
[
'extend type',
name,
wrap('implements ', join(interfaces, ' & ')),
join(directives, ' '),
block(fields),
],
' ',
),
},
InterfaceTypeExtension: {
leave: ({ name, interfaces, directives, fields }) =>
join(
[
'extend interface',
name,
wrap('implements ', join(interfaces, ' & ')),
join(directives, ' '),
block(fields),
],
' ',
),
},
UnionTypeExtension: {
leave: ({ name, directives, types }) =>
join(
[
'extend union',
name,
join(directives, ' '),
wrap('= ', join(types, ' | ')),
],
' ',
),
},
EnumTypeExtension: {
leave: ({ name, directives, values }) =>
join(['extend enum', name, join(directives, ' '), block(values)], ' '),
},
InputObjectTypeExtension: {
leave: ({ name, directives, fields }) =>
join(['extend input', name, join(directives, ' '), block(fields)], ' '),
},
};
/**
* Given maybeArray, print an empty string if it is null or empty, otherwise
* print all items together separated by separator if provided
*/
function join(maybeArray, separator = '') {
var _maybeArray$filter$jo;
return (_maybeArray$filter$jo =
maybeArray === null || maybeArray === void 0
? void 0
: maybeArray.filter((x) => x).join(separator)) !== null &&
_maybeArray$filter$jo !== void 0
? _maybeArray$filter$jo
: '';
}
/**
* Given array, print each item on its own line, wrapped in an indented `{ }` block.
*/
function block(array) {
return wrap('{\n', indent(join(array, '\n')), '\n}');
}
/**
* If maybeString is not null or empty, then wrap with start and end, otherwise print an empty string.
*/
function wrap(start, maybeString, end = '') {
return maybeString != null && maybeString !== ''
? start + maybeString + end
: '';
}
function indent(str) {
return wrap(' ', str.replace(/\n/g, '\n '));
}
function hasMultilineItems(maybeArray) {
var _maybeArray$some;
// FIXME: https://github.com/graphql/graphql-js/issues/2203
/* c8 ignore next */
return (_maybeArray$some =
maybeArray === null || maybeArray === void 0
? void 0
: maybeArray.some((str) => str.includes('\n'))) !== null &&
_maybeArray$some !== void 0
? _maybeArray$some
: false;
}
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